//constructor to set all of these variables from an RTP model pass
public ClientModel(int rand, Video vid, RTPmodel rtp)
{
id = rand;
seq = 1;
_video = vid;
_RTPmodel = rtp;
_timer = new RTSPtimer(rand);
_timer.Interval = interval;
}
private void Time_Process(Object obj, ElapsedEventArgs args)
{
RTSPtimer t = (RTSPtimer)obj;
for (int i = 0; i < _ClientModels.Count; i++)
{
if (_ClientModels.ElementAt(i).Get_ID() == t.Get_ID())
{
_ClientModels.ElementAt(i).Inc_Seq();
RTPmodel rtp = _ClientModels.ElementAt(i).Get_RTP();
IPEndPoint ep = rtp.Get_EndPoint();
Video vid = _ClientModels.ElementAt(i).Get_Video();
byte[] rcv = vid.Get_NextFrame();
RTPpacket rtp_pack = new RTPpacket(rcv, _ClientModels.ElementAt(i).Get_Seq(), rcv.Length);
if (_view.Get_Check())
{
Add_Server(rtp_pack.Get_Header() + "\r\n");
}
rtp.Send_Data(rtp_pack.Get_Bytes());
}
}
}
public void Main_Handler(object o)
{
//networking variables
Socket s = (Socket)o;
byte[] rcv = new byte[264];
//control variables
int cnt = 0; //extension of the class count variable
int rnd = 0; //extension of the class rand variable
int seq = 1; //for the sequence number
bool set = true; //setup is always initially true
//class variables
RTPmodel _RTPmodel = null;
ClientModel _newClient = null;
Video _video = null;
//try and catch all potential socket reactions
try
{
while (set)
{
bool exit = false;
int size = s.Receive(rcv);
if (size == 0)
{
break;
}
string size_mess = System.Text.Encoding.UTF8.GetString(rcv, 0, size);
_view.Add_Client_del(size_mess);
string check_set = System.Text.Encoding.UTF8.GetString(rcv, 0, 4);
if (check_set == "SETU" && set)
{
//rtp
string[] new_str = size_mess.Split(new char[] { '=' });
int p = int.Parse(new_str[1]);
_RTPmodel = new RTPmodel(p);
//video
string vid = System.Text.Encoding.UTF8.GetString(rcv, 28, 12);
_video = new Video(vid);
rnd = Get_Random();
//client
_newClient = new ClientModel(rnd, _video, p);
_ClientModels.Add(_newClient);
cnt = count++;
//update serv
Add_Server("The client " + _ClientModels.ElementAt(cnt).Get_RTP().Get_EndPoint().ToString() + " is setting up\r\n");
_ClientModels.ElementAt(cnt).Get_Timer().Elapsed += Time_Process;
set = false;
//response
string reqt = "RTSP/1.0 200 OK\r\n";
string cseq = "CSeq: " + seq + "\r\n";
++seq;
string sess = "Session: " + _ClientModels.ElementAt(cnt).Get_ID() + "\r\n";
string mess = reqt + cseq + sess + "\r\n";
byte[] mb = System.Text.Encoding.ASCII.GetBytes(mess);
s.Send(mb);
}
//otherwise the setup is not required
while (!set)
{
int size_ns = s.Receive(rcv);
if (size == 0)
{
break;
}
string size_mess_ns = System.Text.Encoding.UTF8.GetString(rcv, 0, size);
_view.Add_Client_del(size_mess_ns);
string check_set_ns = System.Text.Encoding.UTF8.GetString(rcv, 0, 4);
//determine which action is being performed...
if (check_set_ns == "PLAY")
{
string reqt_play = "RTSP/1.0 200 OK\r\n";
string cseq_play = "CSeq: " + seq + "\r\n";
++seq;
string sess_play = "Session: " + _ClientModels.ElementAt(cnt).Get_ID() + "\r\n";
string mess_play = reqt_play + cseq_play + sess_play + "\r\n";
byte[] mb_play = System.Text.Encoding.ASCII.GetBytes(mess_play);
s.Send(mb_play);
Add_Server("The client " + _ClientModels.ElementAt(cnt).Get_RTP().Get_EndPoint().ToString() + " is playing " + _video.Get_Name() + "\r\n");
_ClientModels.ElementAt(cnt).startTimer();
}
else if (check_set_ns == "PAUS")
{
string reqt_paus = "RTSP/1.0 200 OK\r\n";
string cseq_paus = "CSeq: " + seq + "\r\n";
++seq;
string sess_paus = "Session: " + rnd + "\r\n";
string mess_paus = reqt_paus + cseq_paus + sess_paus + "\r\n";
byte[] mb_paus = System.Text.Encoding.ASCII.GetBytes(mess_paus);
s.Send(mb_paus);
Add_Server("The client " + _ClientModels.ElementAt(cnt).Get_RTP().Get_EndPoint().ToString() + " paused " + _video.Get_Name() + "\r\n");
_ClientModels.ElementAt(cnt).stopTimer();
}
else if (check_set_ns == "TEAR")
{
string reqt_stop = "RTSP/1.0 200 OK\r\n";
string cseq_stop = "CSeq: " + seq + "\r\n";
++seq;
string sess_stop = "Session: " + rnd + "\r\n";
string mess_stop = reqt_stop + cseq_stop + sess_stop + "\r\n";
byte[] mb_stop = System.Text.Encoding.ASCII.GetBytes(mess_stop);
s.Send(mb_stop);
Add_Server("The client " + _ClientModels.ElementAt(cnt).Get_RTP().Get_EndPoint().ToString() + " is tearing down " + _video.Get_Name() + "\r\n");
_ClientModels.ElementAt(cnt).stopTimer();
_ClientModels.ElementAt(cnt).Get_Video().Trash_Video();
this.used.Remove(_ClientModels.ElementAt(cnt).Get_ID());
set = true;
}
else
{
//dead state...
}
}
if (exit)
{
break;
}
}
}
catch (SocketException e)
{
if (s != null)
{
s.Close();
}
}
finally
{
_ClientModels.ElementAt(cnt).stopTimer();
s.Close();
}
}
